Works (73)

Updated: April 22nd, 2024 07:45

2024 article

Registration of 'FL16045-25': An early-maturing, high-yielding, disease-resistant soft red facultative wheat cultivar for the southern United States

Babar, M. A., Khan, N., Blount, A., Barnett, R. D., Harrison, S. A., Dewitt, N., … Mailhot, D. (2024, April 8). JOURNAL OF PLANT REGISTRATIONS, Vol. 4.

By: M. Babar*, N. Khan*, A. Blount*, R. Barnett*, S. Harrison*, N. Dewitt*, J. Johnson*, M. Mergoum* ...

Sources: Web Of Science, NC State University Libraries
Added: April 15, 2024

2023 article

Approaching 25 years of progress towards Fusarium head blight resistance in southern soft red winter wheat (Triticum aestivum L.)

Boyles, R. E., Ballen-Taborda, C., Brown-Guedira, G., Costa, J., Cowger, C., DeWitt, N., … Winn, Z. J. (2023, August 10). PLANT BREEDING, Vol. 8.

By: R. Boyles*, C. Ballen-Taborda*, G. Brown-Guedira*, J. Costa*, C. Cowger*, N. DeWitt*, C. Griffey*, S. Harrison* ...

author keywords: breeding; Fusarium; genomics; prediction; resistance; wheat
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 21, 2023

2023 article

Effects of Host and Weather Factors on the Growth Rate of Septoria nodorum Blotch Lesions on Winter Wheat

Adhikari, U., Brown, J., Ojiambo, P. S., & Cowger, C. (2023, May 5). PHYTOPATHOLOGY, Vol. 5.

By: U. Adhikari n, J. Brown*, P. Ojiambo n & C. Cowger n

author keywords: disease resistance; lesion growth rate; lesion size; Parastagonospora nodorum; partial resistance; Septoria nodorum blotch
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 8, 2023

2023 journal article

Evaluation of a Model for Predicting Onset of Septoria nodorum Blotch in Winter Wheat

PLANT DISEASE, 107(4), 1122–1130.

By: U. Adhikari n, C. Cowger* & P. Ojiambo n

author keywords: cereals and grains; disease development and spread; disease onset; disease warning systems; epidemiology; field crops; model accuracy; prediction model; sensitivity; yield
Sources: ORCID, Web Of Science, NC State University Libraries
Added: September 15, 2023

2023 journal article

Manipulating the plant mycobiome to enhance resilience: Ecological and evolutionary opportunities and challenges

PLOS PATHOGENS, 19(12).

By: C. Hawkes n, X. Allen n, P. Balint-Kurti n & C. Cowger n

Sources: Web Of Science, NC State University Libraries
Added: January 2, 2024

2023 article

Optimal Timing of Fungicide Application to Manage Fusarium Head Blight in Winter Barley

Cowger, C., Read, Q. D. D., Clark, L., & Dong, Y. (2023, April 11). PLANT DISEASE, Vol. 4.

By: C. Cowger n, Q. Read*, L. Clark* & Y. Dong*

author keywords: cereals and grains; chemical; fungi
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 19, 2023

2023 journal article

Two pathogen loci determine <i>Blumeria graminis

New Phytologist, 238(4), 1546–1561.

author keywords: Blumeria graminis; effector; genome-wide association study; host resistance; powdery mildew; Triticum aestivum; wheat
MeSH headings : Triticum / microbiology; Virulence / genetics; Genome-Wide Association Study; Plant Diseases / microbiology; Disease Resistance / genetics
TL;DR: A genome-wide association study was conducted to map sequence variants associated with Pm1a virulence in 216 Bgt isolates from six countries, including the U.S; a co-expression study in Nicotiana benthamiana showed that BGTE-5612 and BGT-51526 each produce a PM1A-dependent hypersensitive response. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: March 19, 2023

2022 article

A new soft red winter wheat cultivar 'GA 08535-15LE29' adapted to Georgia and the US southeast region

Mergoum, M., Johnson, J., Buck, J., Buntin, G. D., Sutton, S., Lopez, B., … Cowger, C. (2022, May 28). JOURNAL OF PLANT REGISTRATIONS, Vol. 5.

By: M. Mergoum, J. Johnson*, J. Buck*, G. Buntin*, S. Sutton*, B. Lopez*, D. Mailhot*, Z. Chen* ...

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: June 6, 2022

2022 journal article

Evaluation of Methods for Measuring Fusarium-Damaged Kernels of Wheat

AGRONOMY-BASEL, 12(2).

By: A. Ackerman*, R. Holmes*, E. Gaskins*, K. Jordan*, D. Hicks*, J. Fitzgerald*, C. Griffey*, R. Mason* ...

author keywords: Fusarium head blight; Fusarium-damaged kernels; deoxynivalenol; DON resistance; manual sorting; visual estimation; near-infrared spectroscopy; Vibe QM3 digital imaging
Sources: Web Of Science, ORCID, NC State University Libraries
Added: March 7, 2022

2022 journal article

Global genomic analyses of wheat powdery mildew reveal association of pathogen spread with historical human migration and trade

NATURE COMMUNICATIONS, 13(1).

MeSH headings : Genomics; Human Migration; Humans; Plant Diseases / microbiology; Poaceae; Triticum / genetics; Triticum / microbiology
TL;DR: A global sample of 172 mildew genomes is analyzed, providing evidence that humans drove global spread of the pathogen throughout history and that mildew rapidly evolved through hybridization with local fungal strains. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 15, 2022

2022 article

Infection timing affects Fusarium poae colonization of bread wheat spikes and mycotoxin accumulation in the grain

Tini, F., Covarelli, L., Cowger, C., Sulyok, M., Benincasa, P., & Beccari, G. (2022, June 2). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, Vol. 6.

author keywords: Fusarium poae; mycotoxins; nivalenol; wheat; cereals; infection timing
MeSH headings : Bread; Edible Grain / chemistry; Fusarium; Mycotoxins / analysis; Plant Diseases; Trichothecenes; Triticum / metabolism
TL;DR: The influence of five infection timings on F. poae colonization and accumulation of its mycotoxins (particularly NIV) in grain is explored, enhancing knowledge of a common member of the FHB complex worldwide and could be useful in forecasting the risk of F.Poae infection and mycotoxin contamination. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: June 13, 2022

2022 journal article

Sensitivity of the US Wheat Powdery Mildew Population to Quinone Outside Inhibitor Fungicides and Determination of the Complete Blumeria graminis f. sp. tritici Cytochrome b Gene

PHYTOPATHOLOGY, 112(2), 249–260.

By: C. Cowger n, E. Meyers n & R. Whetten*

author keywords: antimicrobial or fungicide resistance; disease control and pest management; fungal pathogens; genomics
MeSH headings : Ascomycota / genetics; Cytochromes b / genetics; Fungicides, Industrial / pharmacology; Plant Diseases / microbiology; Strobilurins; Triticum / microbiology
TL;DR: This study was the first QoI sensitivity screening of a large, geographically diverse set of U.S. wheat isolates, and while the population as a whole remains relatively sensitive, some quantitative loss of efficacy was observed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: April 4, 2022

2022 journal article

Virulence of Blumeria graminis f. sp. tritici in Brazil, South Africa, Turkey, Russia, and Australia

FRONTIERS IN PLANT SCIENCE, 13.

By: T. Kloppe n, W. Boshoff*, Z. Pretorius*, D. Lesch, B. Akin, A. Morgounov, V. Shamanin, P. Kuhnem, P. Murphy n, C. Cowger n

author keywords: common wheat; powdery mildew; resistance genes; virulence frequency; virulence complexity; genetic diversity; Blumeria graminis f; sp; tritici; durability
TL;DR: Virulence frequencies were assessed in isolate collections from several countries that had either lately recorded increasing powdery mildew epidemics or not recently been surveyed, and it appeared that the recently introgressed Pm genes could be the useful sources of resistance in wheat breeding for other surveyed regions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 29, 2022

2021 article

'GA JT141-14E45': A new soft red winter wheat cultivar adapted to Georgia and the US Southeast region

Mergoum, M., Johnson, J. W., Buck, J. W., Sutton, S., Lopez, B., Bland, D., … Cambron, S. E. (2021, August 4). JOURNAL OF PLANT REGISTRATIONS, Vol. 8.

By: M. Mergoum*, J. Johnson*, J. Buck*, S. Sutton*, B. Lopez*, D. Bland*, Z. Chen*, G. Buntin* ...

Sources: Web Of Science, NC State University Libraries
Added: August 23, 2021

2021 journal article

A new soft red winter wheat cultivar, 'GA 07353-14E19', adapted to Georgia and the US Southeast environments

JOURNAL OF PLANT REGISTRATIONS, 15(2), 337–344.

By: M. Mergoum*, J. Johnson*, J. Buck*, S. Sutton*, B. Lopez*, D. Bland*, Z. Chen*, G. Buntin* ...

Sources: Web Of Science, NC State University Libraries
Added: May 24, 2021

2021 journal article

Pythium spp. Associated with Root Rot and Stunting of Winter Crops in North Carolina

PLANT DISEASE, 105(11), 3433–3442.

By: E. Reeves n, J. Kerns n, C. Cowger & B. Shew n

author keywords: cultural and biological practices; disease management; field crops; oomycetes
MeSH headings : Growth Disorders; North Carolina; Plant Diseases; Pythium; Seasons
TL;DR: During the growing seasons of 2018-2019 and 2019-2020 samples of clary sage, rye, rapeseed, and winter pea displaying symptoms of stunting were collected across eastern NC, resulting in the recovery of 420 isolates of Pythium from the roots of all hosts. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: February 28, 2022

2021 journal article

Pythium spp. Associated with Root Rot and Stunting of Winter Wheat in North Carolina

PLANT DISEASE, 105(4), 986–996.

By: E. Reeves n, J. Kerns n, C. Cowger n & B. Shew n

author keywords: cereals and grains; etiology; field crops; oomycetes
MeSH headings : Growth Disorders; Humans; North Carolina; Plant Diseases; Pythium; Triticum
TL;DR: All inoculation treatments caused severe root rot under all conditions tested, and disease was more severe at 12/14°C compared to 18/20°C, but there was no effect of nitrogen application. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 6, 2021

2021 journal article

Soft red winter wheat 'GA 051207-14E53': Adapted cultivar to Georgia and the US Southeast region

JOURNAL OF PLANT REGISTRATIONS, 15(1), 132–139.

By: M. Mergoum*, J. Johnson*, J. Buck*, S. Sutton*, B. Lopez*, D. Bland*, Z. Chen*, G. Buntin* ...

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: March 15, 2021

2021 article

Virulence structure of Blumeria graminis f. sp. tritici, the causal agent of wheat powdery mildew, in Ontario, Canada, in 2018 and 2019

Xue, A. G., Lim, S., Chen, Y., Humphreys, G., Cao, W., Menzies, J., … Serajazari, M. (2021, May 4). CANADIAN JOURNAL OF PLANT PATHOLOGY, Vol. 5.

By: A. Xue*, S. Lim*, Y. Chen*, G. Humphreys*, W. Cao*, J. Menzies*, C. Cowger n, H. Li*, M. Serajazari*

author keywords: Blumeria graminis f; sp; tritici; powdery mildew; virulence structure; wheat
TL;DR: The effective genes identified in this study may be deployed singly or used for gene pyramiding in wheat breeding programs for developing powdery mildew-resistant cultivars in Ontario. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: June 10, 2021

2020 journal article

Managing a Destructive, Episodic Crop Disease: A National Survey of Wheat and Barley Growers' Experience With Fusarium Head Blight

PLANT DISEASE, 104(3), 634–648.

By: C. Cowger n, J. Smith n, D. Boos n, C. Bradley*, J. Ransom* & G. Bergstrom*

author keywords: cereals and grains; chemical cultivar/resistance; disease management; disease warning systems; epidemiology; field crops; fungi
MeSH headings : Fusarium; Hordeum; Kentucky; Maryland; North Dakota; Plant Diseases; Surveys and Questionnaires; Triticum
TL;DR: A national survey was undertaken by the U.S. Wheat and Barley Scab Initiative in 17 states to highlight the challenges of managing an episodically damaging crop disease and point to specific areas for improvement. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: April 6, 2020

2020 journal article

Regional and field-specific differences in Fusarium species and mycotoxins associated with blighted North Carolina wheat

INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY, 323.

By: C. Cowger n, T. Ward, K. Nilsson n, C. Arellano n, S. McCormick & M. Busman

author keywords: Fusarium graminearum; Fusarium head blight; Fusarium tricinctum species complex; Scab; Deoxynivalenol; Moniliformin; Gibberella ear rot; Small grains; Chemotype
MeSH headings : Biodiversity; Edible Grain / microbiology; Fusarium / classification; Fusarium / physiology; Mycotoxins / analysis; Mycotoxins / metabolism; North Carolina; Plant Diseases; Trichothecenes / analysis; Trichothecenes / metabolism; Triticum / microbiology
TL;DR: Surprisingly, although F. graminearum was the majority species detected, species in the Fusarium tricinctum species complex (FTSC) that produce "emerging mycotoxins" were frequent, and even dominant in some fields. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 15, 2020

2020 journal article

Role of Effector-Sensitivity Gene Interactions and Durability of Quantitative Resistance to Septoria Nodorum Blotch in Eastern US Wheat

FRONTIERS IN PLANT SCIENCE, 11.

By: C. Cowger n, B. Ward n, G. Brown-Guedira n & J. Brown*

author keywords: Parastagonospora nodorum; Septoria nodorum blotch; quantitative resistance; genotyping by sequencing; genome-wide association study; necrotrophic effectors; necrotrophic effector sensitivity genes
TL;DR: The evidence is reviewed that in this eastern region of the U.S., wheat cultivars have durable quantitative SNB resistance and Snn–NE interactions are of limited importance. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: April 27, 2020

2020 journal article

Sensitivity of Fusarium graminearum to Metconazole and Tebuconazole Fungicides Before and After Widespread Use in Wheat in the United States

PLANT HEALTH PROGRESS, 21(2), 85–90.

By: N. Anderson*, A. Freije*, G. Bergstrom*, C. Bradley*, C. Cowger n, T. Faske, C. Hollier*, N. Kleczewski* ...

author keywords: Fusarium head blight; demethylation inhibitor; DMI; mycelial growth assays; fungicide sensitivity
TL;DR: This study examines the sensitivity of U.S. populations of F. graminearum to the DMI triazole fungicides metconazole and tebuconazoles and indicates reduced sensitivity compared with the mean EC₅₀ of other isolates collected between 2000 and 2014. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: September 14, 2020

2020 journal article

Timing of Susceptibility to Fusarium Head Blight in Winter Wheat

PLANT DISEASE, 104(11), 2928–2939.

By: C. Cowger n, G. Beccari* & Y. Dong*

author keywords: cereals and grains; cultivar/resistance; Fusarium graminearum; Fusarium head blight; infection timing; fungi; disease management
MeSH headings : Fusarium; North Carolina; Plant Diseases; Trichothecenes; Triticum
TL;DR: The results suggest that duration of susceptibility is an important aspect of cultivar resistance to FHB, and one moderately resistant cultivar had at least a 2- to 3-day shorter window of susceptibility to damaging FHB infection than the susceptible cultivar. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 21, 2020

2019 journal article

Disease Management and Estimated Effects on DON (Deoxynivalenol) Contamination in Fusarium Infested Barley

Agriculture, 9(7), 155.

By: G. McKee*, C. Cowger*, R. Dill-Macky*, A. Friskop*, P. Gautam, J. Ransom*, W. Wilson*

TL;DR: The estimate of the statistical relationship among DON contamination in barley, FHB incidence and severity, and a variety of disease management techniques is presented to evaluate the economic value of adopting FHB management techniques. (via Semantic Scholar)
Source: ORCID
Added: September 15, 2023

2019 article

Durability of Quantitative Resistance in Crops: Greater Than We Know?

ANNUAL REVIEW OF PHYTOPATHOLOGY, VOL 57, 2019, Vol. 57, pp. 253–277.

By: C. Cowger n & J. Brown*

author keywords: quantitative resistance; effector-triggered resistance; fitness penalty; publication bias; filing cabinet effect
MeSH headings : Adaptation, Physiological; Crops, Agricultural; Disease Resistance; Humans; Plant Diseases
TL;DR: It is argued that published data likely underreport the durability of QR, owing to publication bias, and longitudinal data on cultivars' disease ratings in trials over several years can be used to assess the significance of QR for durable resistance in crops. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: September 23, 2019

2019 journal article

Effect of wheat infection timing on Fusarium head blight causal agents and secondary metabolites in grain

INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY, 290, 214–225.

author keywords: Anthesis; Fusarium graminearum; Fusarium avenaceum; Fusarium poae; Fusarium acuminatum; Mycotoxins
MeSH headings : Chromatography, Liquid; Edible Grain / microbiology; Fusarium / classification; Fusarium / isolation & purification; Mycotoxins / analysis; Plant Diseases / microbiology; Secondary Metabolism; Tandem Mass Spectrometry; Time Factors; Triticum / metabolism; Triticum / microbiology
TL;DR: Overall, infection timing appeared to play a role particularly in F. graminearum colonization and secondary metabolite accumulation, however, secondary metabolites of weaker Fusarium species may be relatively more abundant when environmental conditions promote spore dispersal later in anthesis. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: February 11, 2019

2019 article

Local adaptation drives the diversification of effectors in the fungal wheat pathogen Parastagonospora nodorum in the United States

Richards, J. K., Stukenbrock, E. H., Carpenter, J., Liu, Z., Cowger, C., Faris, J. D., & Friesen, T. L. (2019, May 31). (Vol. 5). Vol. 5.

UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: September 15, 2023

2019 journal article

Local adaptation drives the diversification of effectors in the fungal wheat pathogen Parastagonospora nodorum in the United States

PLOS Genetics, 15(10), e1008223.

Ed(s): D. Matute

TL;DR: Results indicate that P. nodorum is rapidly adapting to distinct selection pressures unique to spring and winter wheat production regions by various routes of genomic diversification, potentially facilitated through transposable element activity. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: September 15, 2023

2019 journal article

Managing Fusarium Head Blight in Winter Barley With Cultivar Resistance and Fungicide

PLANT DISEASE, 103(8), 1858–1864.

By: C. Cowger n, C. Arellano n, D. Marshall n & J. Fitzgerald*

author keywords: cereals and grains; chemical; disease management; field crops; fungi
MeSH headings : Disease Resistance / genetics; Fungicides, Industrial / pharmacology; Fusarium / drug effects; Fusarium / physiology; Hordeum / classification; Hordeum / genetics; Hordeum / microbiology; North Carolina; Plant Diseases / microbiology; Plant Diseases / prevention & control; Virginia
TL;DR: The results indicate that barley growers concerned about minimizing DON should both plant moderately resistant varieties and apply fungicide if there is scab risk, and take action to ensure the optimal timing for fungicide application. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 12, 2019

2019 journal article

Sensitivity of the US Blumeria graminis f. sp. tritici Population to Demethylation Inhibitor Fungicides

PLANT DISEASE, 103(12), 3108–3116.

By: E. Meyers n, C. Arellano n & C. Cowger n

MeSH headings : Arkansas; Ascomycota / drug effects; Drug Resistance, Fungal; Fungicides, Industrial / pharmacology; Inhibitory Concentration 50; Missouri; United States
TL;DR: The observation of reduced sensitivity to DMI fungicides in the eastern United States underlines the importance of rotating between chemistry classes to maintain the effectiveness of DMIs in U.S. wheat production and produces evidence of regional selection for reduced DMI efficacy. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 16, 2019

2018 journal article

Distinct domains of the AVRPM3(A2/F2) avirulence protein from wheat powdery mildew are involved in immune receptor recognition and putative effector function

NEW PHYTOLOGIST, 218(2), 681–695.

By: K. McNally*, F. Menardo*, L. Luthi*, C. Praz*, M. Mueller, L. Kunz*, R. Ben-David*, K. Chandrasekhar* ...

author keywords: avirulence gene; Blumeria graminis; gene synthesis; natural diversity; Nicotiana benthamiana; Pm3; site-directed mutagenesis; wheat
MeSH headings : Amino Acid Motifs; Amino Acid Sequence; Ascomycota / genetics; Ascomycota / isolation & purification; Ascomycota / pathogenicity; Conserved Sequence; Fungal Proteins / chemistry; Fungal Proteins / genetics; Fungal Proteins / metabolism; Gene Expression Regulation, Fungal; Geography; Mutation / genetics; Phenotype; Plant Diseases / microbiology; Plant Proteins / metabolism; Polymorphism, Genetic; Protein Domains; Receptors, Immunologic / metabolism; Structure-Activity Relationship; Triticum / microbiology; Virulence
TL;DR: Results demonstrate the utility of using gene family sequence diversity to screen residues for their role in recognition and conclude that molecular mechanisms besides recognition drive AvrPm3 a2/f2 diversification. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Regional differences in the composition of Fusarium Head Blight pathogens and mycotoxins associated with wheat in Mexico

INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY, 273, 11–19.

author keywords: FHB; Trichothecene; Fusarium boothii; Fusarium avenaceum; Mycotoxin
MeSH headings : Depsipeptides / analysis; Edible Grain / chemistry; Edible Grain / microbiology; Food Contamination / analysis; Fusarium / classification; Fusarium / genetics; Fusarium / isolation & purification; Fusarium / metabolism; Mexico; Mycotoxins / analysis; Plant Diseases / microbiology; T-2 Toxin / analysis; Trichothecenes / analysis; Triticum / microbiology
TL;DR: A combination of DNA sequence-based methods and in-vitro toxin analyses to characterize FHB isolates collected from symptomatic wheat in Mexico during the 2013 and 2014 growing seasons identified five species complexes including nine named Fusarium species and 30 isolates representing unnamed or potentially novel species. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Registration of Two Wheat Germplasm Lines Fixed for Pm58

JOURNAL OF PLANT REGISTRATIONS, 12(2), 270–273.

By: A. Wiersma*, R. Whetten*, G. Zhang*, S. Sehgal*, F. Kolb*, J. Poland*, R. Mason, A. Carter*, C. Cowger n, E. Olson*

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 16, 2018

2018 journal article

Understanding Yield Loss and Pathogen Biology to Improve Disease Management: Septoria Nodorum Blotch - A Case Study in Wheat

PLANT DISEASE, 102(4), 696–707.

By: A. Ficke*, C. Cowger n, G. Bergstrom* & G. Brodal*

MeSH headings : Agriculture / economics; Ascomycota / physiology; Disease Resistance / genetics; Fungicides, Industrial; Models, Biological; Plant Diseases / economics; Plant Diseases / genetics; Plant Diseases / prevention & control; Triticum / microbiology
TL;DR: The main aim of this paper is to review and analyze the literature on a representative host-pathogen relationship in an important staple food crop to identify knowledge gaps and research areas to better assess yield loss and design management strategies based on economic thresholds. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Virulence Differences in Blumeria graminis f. sp tritici from the Central and Eastern United States

PHYTOPATHOLOGY, 108(3), 402–411.

By: C. Cowger n, L. Mehra n, C. Arellano n, E. Meyers n & J. Murphy n

MeSH headings : Ascomycota / pathogenicity; Ascomycota / physiology; Plant Diseases / microbiology; Triticum / genetics; Triticum / microbiology; United States; Virulence
TL;DR: The research confirmed that most long-used Pm genes are defeated in the eastern United States, and the U.S. B. graminis f. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

Virulence of Egyptian Blumeria graminis f. sp tritici Population and Response of Egyptian Wheat Cultivars

PLANT DISEASE, 102(2), 391–397.

By: A. Abdelrhim*, H. Abd-Alla*, E. Abdou*, M. Ismail* & C. Cowger n

MeSH headings : Ascomycota / genetics; Ascomycota / pathogenicity; Ascomycota / physiology; Egypt; Plant Diseases / microbiology; Triticum / genetics; Triticum / microbiology; Triticum / physiology; Virulence
TL;DR: To enhance mildew resistance in Egyptian wheat cultivars, it is recommended to use combinations of genes that are nationally effective or effective against multiple provincial B. tritici populations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

A Model for Predicting Onset of Stagonospora nodorum Blotch in Winter Wheat Based on Preplanting and Weather Factors

PHYTOPATHOLOGY, 107(6), 635–644.

By: L. Mehra n, C. Cowger n & P. Ojiambo n

author keywords: model accuracy
MeSH headings : Ascomycota / physiology; Data Accuracy; Host-Pathogen Interactions; Logistic Models; Models, Statistical; Plant Diseases / microbiology; Plant Leaves / microbiology; Triticum / microbiology; Weather
TL;DR: Binary logistic regression models were developed to predict the occurrence and onset of SNB using preplanting factors and cumulative daily infection values starting 1 to 3 weeks prior to DOY 102, and this disease onset prediction model could serve as a useful decision support tool to guide fungicide applications to manage SNB in wheat. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2017 journal article

Identification of Pm58 from Aegilops tauschii

THEORETICAL AND APPLIED GENETICS, 130(6), 1123–1133.

By: A. Wiersma*, J. Pulman*, L. Brown*, C. Cowger n & E. Olson*

MeSH headings : Ascomycota; Chromosome Mapping; DNA, Plant / genetics; Disease Resistance / genetics; Genes, Plant; Genetic Linkage; Genetic Markers; Genotype; High-Throughput Nucleotide Sequencing; Plant Diseases / genetics; Plant Diseases / microbiology; Poaceae / genetics; Poaceae / microbiology; Quantitative Trait Loci; Sequence Analysis, DNA; Triticum / genetics
TL;DR: A novel powdery mildew-resistance gene, designated Pm58, was introgressed directly from Aegilops tauschii to hexaploid wheat, mapped to chromosome 2DS, and confirmed to be effective under field conditions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Re-Engineering of the Pm21 Transfer from Haynaldia villosa to Bread Wheat by Induced Homoeologous Recombination

CROP SCIENCE, 57(5), 2590–2594.

By: A. Lukaszewski* & C. Cowger n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Validation of Fusarium Head Blight Resistance QTL in US Winter Wheat

CROP SCIENCE, 57(1), 1–12.

By: S. Petersen n, J. Lyerly n, A. McKendry*, M. Islam, G. Brown-Guedira n, C. Cowger n, Y. Dong*, J. Murphy n

TL;DR: A preliminary test using Kompetitive Allele-Specific polymerase chain reaction assays on recent Uniform Southern Winter Wheat Scab Nursery entries showed that the assays developed for Qfhb.nc-2B.1 may be good candidates for use in marker-assisted selection. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Differentiation Among Blumeria graminis f. sp tritici Isolates Originating from Wild Versus Domesticated Triticum Species in Israel

PHYTOPATHOLOGY, 106(8), 861–870.

By: R. Ben-David n, R. Parks n, A. Dinoor n, E. Kosman n, T. Wicker n, B. Keller n, C. Cowger n

author keywords: Triticum turgidum subsp dicoccoides; virulence analysis tool
MeSH headings : Ascomycota / genetics; Ascomycota / isolation & purification; Ascomycota / pathogenicity; Base Sequence; DNA, Fungal / genetics; Israel; Plant Diseases / microbiology; Polymorphism, Single Nucleotide; Triticum / microbiology; Virulence
TL;DR: Overall, B. graminis f. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Mapping of Fusarium Head Blight Resistance Quantitative Trait Loci in Winter Wheat Cultivar NC-Neuse

CROP SCIENCE, 56(4), 1473–1483.

By: S. Petersen n, J. Lyerly n, P. Maloney*, G. Brown-Guedira n, C. Cowger n, J. Costa, Y. Dong*, J. Murphy n

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Profitability of Integrated Management of Fusarium Head Blight in North Carolina Winter Wheat

PHYTOPATHOLOGY, 106(8), 814–823.

By: C. Cowger n, R. Weisz n, C. Arellano n & P. Murphy n

MeSH headings : Agriculture / economics; Agriculture / methods; Fungicides, Industrial / economics; Fungicides, Industrial / pharmacology; Fusarium; Genetic Predisposition to Disease; North Carolina; Plant Diseases / genetics; Plant Diseases / microbiology; Trichothecenes; Triticum / genetics; Triticum / microbiology
TL;DR: Overall, the results indicated that cultivar resistance to FHB was important for profitability, an FHB-targeted fungicide expanded market options when risk was moderate or high, and the efficacy of fungicide decision-making is reduced by factors that limit the accuracy of risk forecasts. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Structure and Migration in US Blumeria graminis f. sp tritici Populations

PHYTOPATHOLOGY, 106(3), 295–304.

By: C. Cowger n, R. Parks n & E. Kosman n

MeSH headings : Ascomycota / genetics; Ascomycota / physiology; Genetic Variation; Plant Diseases / microbiology; Triticum / microbiology; United States
TL;DR: The evidence argues for a large-scale mosaic of overlapping populations that re-establish themselves from local sources, rather than continental-scale extinction and re-establishment, and a low rate of long-distance dispersal roughly from west to east, consistent with prevailing wind directions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

The geographic distribution and complex evolutionary history of the NX-2 trichothecene chemotype from Fusarium graminearum

FUNGAL GENETICS AND BIOLOGY, 95, 39–48.

By: A. Kelly*, R. Proctor*, F. Belzile*, S. Chulze*, R. Clear, C. Cowger n, W. Elmer*, T. Lee* ...

author keywords: Fusarium head blight; Trichothecene; NX-2; TRI1; Phylogenetics; Molecular evolution
MeSH headings : Amino Acid Sequence; Biodiversity; Canada; DNA, Fungal / analysis; DNA, Fungal / genetics; Edible Grain / microbiology; Evolution, Molecular; Fungal Proteins / genetics; Fusarium / classification; Fusarium / genetics; Fusarium / metabolism; Genes, Fungal / genetics; Geography; Phylogeny; Plant Diseases / microbiology; Polymerase Chain Reaction; Polymorphism, Genetic; Polymorphism, Restriction Fragment Length; Species Specificity; Trichothecenes / biosynthesis; Trichothecenes / chemistry; Trichothecenes / genetics; United States
TL;DR: The results indicate the NX-2 chemotype may be indigenous, and possibly endemic, to southern Canada and the northern U.S. and demonstrate that the evolution of TRI1 within FSAMSC-1 has been complex, with evidence of trans-species evolution and chemotype-specific shifts in selective constraint. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Mapping of powdery mildew resistance gene Pm53 introgressed from Aegilops speltoides into soft red winter wheat

THEORETICAL AND APPLIED GENETICS, 128(2), 303–312.

By: S. Petersen n, J. Lyerly n, M. Worthington n, W. Parks n, C. Cowger n, D. Marshall n, G. Brown-Guedira n, J. Murphy n

MeSH headings : Ascomycota / pathogenicity; Chromosome Mapping; Chromosomes, Plant; DNA, Plant / genetics; Disease Resistance / genetics; Genes, Plant; Genetic Markers; Microsatellite Repeats; Plant Diseases / genetics; Plant Diseases / microbiology; Poaceae / genetics; Polymorphism, Single Nucleotide; Triticum / genetics; Triticum / microbiology
TL;DR: A powdery mildew resistance gene was introgressed from Aegilops speltoides into winter wheat and mapped to chromosome 5BL, and closely linked markers will permit marker-assisted selection for the resistance gene. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Molecular characterization of a new powdery mildew resistance gene Pm54 in soft red winter wheat

THEORETICAL AND APPLIED GENETICS, 128(3), 465–476.

By: Y. Hao*, R. Parks n, C. Cowger n, Z. Chen*, Y. Wang*, D. Bland*, J. Murphy n, M. Guedira n ...

MeSH headings : Ascomycota; Breeding; Chromosome Mapping; Crosses, Genetic; DNA, Plant / genetics; Disease Resistance / genetics; Genes, Plant; Genetic Markers; Genotype; Phenotype; Plant Diseases / genetics; Plant Diseases / microbiology; Quantitative Trait Loci; Triticum / genetics; Triticum / microbiology
TL;DR: A new powdery mildew resistance genePm54 was identified on chromosome 6BL in soft red winter wheat in a RIL population developed from a cross of 26R61 and AGS 2000, indicating that the marker should be useful for pyramiding Pm54 with other Pm genes by marker-assisted selection. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science; OpenAlex)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Quantifying the effects of wheat residue on severity of Stagonospora nodorum blotch and yield in winter wheat

Phytopathology, 105(11), 1417–1426.

By: L. Mehra n, C. Cowger n, R. Weisz n & P. Ojiambo n

MeSH headings : Ascomycota / physiology; Biomass; Host-Pathogen Interactions; Plant Diseases; Triticum / microbiology; Weather
TL;DR: It is shown that when wheat residue was sparse, small additions to residue density produced greater increases in SNB than when residue was abundant, suggesting that the economic threshold for the disease may be higher than previously assumed and warrants review. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries, ORCID
Added: August 6, 2018

2014 journal article

Genes Conferring Sensitivity to Stagonospora nodorum Necrotrophic Effectors in Stagonospora Nodorum Blotch-Susceptible US Wheat Cultivars

PLANT DISEASE, 98(6), 746–753.

By: M. Bertucci n, G. Brown-Guedira n, J. Murphy n & C. Cowger n

TL;DR: Determination of NE sensitivity among 25 winter wheat cultivars that are susceptible to SNB, as well as the moderately resistant 'NC-Neuse', illuminating which NE sensitivity genes may be of concern in breeding for resistance toSNB in the southeastern United States. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 journal article

Fusarium graminearum Infection and Deoxynivalenol Concentrations During Development of Wheat Spikes

PHYTOPATHOLOGY, 103(5), 460–471.

By: C. Cowger* & C. Arellano*

author keywords: scab
MeSH headings : Biomass; Edible Grain / growth & development; Food Contamination; Fusarium / growth & development; Fusarium / physiology; Mycotoxins / analysis; Mycotoxins / metabolism; North Carolina; Plant Diseases / microbiology; Plant Oils / metabolism; Rain; Random Allocation; Temperature; Time Factors; Trichothecenes / analysis; Trichothecenes / metabolism; Triticum / growth & development; Triticum / microbiology
TL;DR: Overall, associations between grain DON levels in harvest-ripe and prior samples were stronger the later the Prior samples were collected, suggesting limits to the possibility of predicting harvest-RIpe grain DON from earlier levels. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Novel Necrotrophic Effectors from Stagonospora nodorum and Corresponding Host Sensitivities in Winter Wheat Germplasm in the Southeastern United States

PHYTOPATHOLOGY, 102(5), 498–505.

By: A. Crook n, T. Friesen, Z. Liu, P. Ojiambo* & C. Cowger*

MeSH headings : Ascomycota / genetics; Ascomycota / metabolism; Chromosome Mapping; Cluster Analysis; Disease Susceptibility; Genes, Bacterial / genetics; Genes, Plant / genetics; Host-Pathogen Interactions; Mycotoxins / genetics; Mycotoxins / metabolism; Mycotoxins / pharmacology; Plant Diseases / microbiology; Plant Leaves / microbiology; Random Allocation; Seeds / drug effects; Seeds / genetics; Seeds / microbiology; Southeastern United States; Triticum / drug effects; Triticum / genetics; Triticum / microbiology
TL;DR: It is suggested that NE sensitivities influence but may not be the only determinant of cultivar resistance to S. nodorum, and specific knowledge of NE and Snn gene frequencies in this region can be used by wheat breeding programs to improve SNB resistance. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2011 journal article

A Degree-Day Model for the Latent Period of Stagonospora nodorum Blotch in Winter Wheat

PLANT DISEASE, 95(5), 561–567.

By: A. Zeatfoss, C. Cowger n & P. Ojiambo n

TL;DR: This study provides data that link disease progress with wheat growth, which facilitates accurate identification of thresholds for timing of fungicide applications and describes the relationship between increasing number of lesions with pycnidia and accumulated thermal time. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2011 journal article

Permanent genetic resources added to molecular ecology resources database 1 December 2010-31 January 2011

Molecular Ecology Resources, 11(3), 586–589.

By: K. Agata, S. Alasaad, V. Almeida-Val, J. Alvarez-Dios, F. Barbisan, J. Beadell, J. Beltran, M. Benitez ...

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

Rye-derived powdery mildew resistance gene Pm8 in wheat is suppressed by the Pm3 locus

THEORETICAL AND APPLIED GENETICS, 123(3), 359–367.

By: R. McIntosh*, P. Zhang*, C. Cowger n, R. Parks n, E. Lagudah* & S. Hoxha*

MeSH headings : Alleles; Ascomycota / pathogenicity; Breeding; Cloning, Molecular; DNA, Plant / genetics; DNA, Plant / isolation & purification; Disease Resistance / genetics; Genes, Plant; Genetic Loci; Inheritance Patterns; Phenotype; Plant Diseases / genetics; Plant Proteins / genetics; Plant Proteins / metabolism; Polymerase Chain Reaction; Recombination, Genetic; Secale / genetics; Suppression, Genetic; Triticum / genetics
TL;DR: Why earlier work indicated that the mildew suppressor was closely associated with specific Gli-A1 and Glu-A3 alleles is explained, and it is predicted that suppression of Pm8 involves translated gene products from the Pm3 locus. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Trichothecene genotypes of Gibberella zeae from winter wheat fields in the eastern USA

PLANT PATHOLOGY, 60(5), 909–917.

By: D. Schmale*, A. Wood-Jones*, C. Cowger n, G. Bergstrom* & C. Arellano n

author keywords: chemotype; fusarium head blight; Gibberella zeae; scab; small grains; vomitoxin
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Maize Debris Increases Barley Yellow Dwarf Virus Severity in North Carolina Winter Wheat

AGRONOMY JOURNAL, 102(2), 688–695.

By: C. Cowger n, R. Weisz n, J. Anderson* & J. Horton*

TL;DR: The results support a recommendation of seed or seedling insecticide treatment when planting wheat into heavy unincorporated maize residue in the U.S. Piedmont, and find of greater YDV severity in association with surface residue is consistent with the reported aphid preference for high-intensity yellow colors. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

MlAB10: A triticum turgidum subsp dicoccoides derived powdery mildew resistance gene identified in common wheat

Crop Science, 50(6), 2261–2267.

By: J. Maxwell, J. Lyerly, G. Srnic, R. Parks, C. Cowger, D. Marshall, G. Brown-Guedira, J. Murphy

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Plump Kernels with High Deoxynivalenol Linked to Late Gibberella zeae Infection and Marginal Disease Conditions in Winter Wheat

PHYTOPATHOLOGY, 100(7), 719–728.

By: C. Cowger n & C. Arrellano

author keywords: Fusarium graminearum; Fusarium head blight; scab; type I resistance; type II resistance
MeSH headings : Gibberella / physiology; Host-Parasite Interactions; Plant Diseases / microbiology; Seeds / metabolism; Seeds / microbiology; Trichothecenes / metabolism; Triticum / metabolism; Triticum / microbiology
TL;DR: Results indicate that the period of maximum susceptibility to wheat spike infections by G. zeae is close to or slightly less than 10 daa in North Carolina, and it is concluded that late infection is an important factor leading to LFHD grain. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Registration of the Soft Red Winter Wheat Germplasm MD01W233-06-1 Resistant to Fusarium Head Blight

JOURNAL OF PLANT REGISTRATIONS, 4(3), 255–260.

By: J. Costa*, H. Bockelman, G. Brown-Guedira*, S. Cambron*, X. Chen, A. Cooper*, C. Cowger*, Y. Dong* ...

TL;DR: This line has type II resistance to FHB that is different from that of 'Sumai 3'. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Aerial Dispersal and Multiple-Scale Spread of Epidemic Disease

ECOHEALTH, 6(4), 546–552.

By: C. Mundt*, K. Sackett*, L. Wallace*, C. Cowger n & J. Dudley*

author keywords: avian influenza H5N1; epidemiology; invasive species; long-distance dispersal (LDD); plant disease; West Nile virus (WNV)
MeSH headings : Air Microbiology; Animals; Birds / virology; Communicable Diseases, Emerging / epidemiology; Communicable Diseases, Emerging / transmission; Communicable Diseases, Emerging / virology; Disease Outbreaks; Disease Transmission, Infectious; Humans; Influenza in Birds / epidemiology; Influenza in Birds / transmission; Influenza in Birds / virology; Influenza, Human / epidemiology; Influenza, Human / transmission; Influenza, Human / virology; Models, Biological; Plant Diseases / microbiology; Space-Time Clustering; West Nile Fever / epidemiology; West Nile Fever / transmission; West Nile Fever / virology
TL;DR: A simple model of disease spread that incorporates logistic growth in time with an inverse power function for dispersal improves understanding of the geographic spread of emerging diseases, and facilitates the development of methods for predicting and preventing epidemics of plants, animals, and humans caused by pathogens that are capable of long-distance dispersal. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 article

Appearance of Powdery Mildew of Wheat Caused by Blumeria graminis f. sp tritici on Pm17-Bearing Cultivars in North Carolina.

Cowger, C., Parks, R., & Marshall, D. (2009, November). PLANT DISEASE, Vol. 93, pp. 1219–1219.

By: C. Cowger n, R. Parks n & D. Marshall n

TL;DR: The loss of Pm17 is the most important virulence shift in the U.S. wheat powdery mildew population since Pm4a became ineffective around 2002 and is expected to appear and multiply in wheat-producing states of the mid-Atlantic United States, including Delaware, Maryland, Virginia, North Carolina, South Carolina, and Georgia. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Long-Distance Dispersal and Accelerating Waves of Disease: Empirical Relationships

AMERICAN NATURALIST, 173(4), 456–466.

By: C. Mundt*, K. Sackett, L. Wallace, C. Cowger* & J. Dudley

author keywords: avian influenza H5N1; epidemiology; invasion biology; long-distance dispersal (LDD); plant disease; West Nile virus
MeSH headings : Animals; Birds / virology; Computer Simulation; Demography; Disease Transmission, Infectious; Influenza in Birds / epidemiology; Influenza in Birds / transmission; Models, Biological; Plant Diseases; Regression Analysis; West Nile Fever / epidemiology; West Nile Fever / transmission
TL;DR: Simple empirical relationships for accelerating waves, based on inverse power law dispersal, are used and applied to diseases caused by pathogens that are wind dispersed or vectored by birds: the within‐season spread of a plant disease at spatial scales of <100 m in experimental plots, historical plant disease epidemics at the continental scale, and the transcontinental spread of avian influenza strain H5N1 in Eurasia and Africa. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

MlAG12: a Triticum timopheevii-derived powdery mildew resistance gene in common wheat on chromosome 7AL

THEORETICAL AND APPLIED GENETICS, 119(8), 1489–1495.

By: J. Maxwell n, J. Lyerly n, C. Cowger n, D. Marshall n, G. Brown-Guedira n & J. Murphy n

MeSH headings : Ascomycota; Chromosome Mapping; Chromosomes, Plant; Genes, Plant; Immunity, Innate / genetics; Plant Diseases / genetics; Plant Diseases / microbiology; Triticum / genetics; Triticum / microbiology
TL;DR: Phenotypic evaluation and bulk segregant analysis revealed simple sequence repeat (SSR) markers specific for chromosome 7AL segregating with the resistance gene in NC06BGTAG12, and the gene was given the temporary gene designation MlAG12. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Population Genetic Analysis of an Eastern US Wheat Powdery Mildew Population Reveals Geographic Subdivision and Recent Common Ancestry with UK and Israeli Populations

PHYTOPATHOLOGY, 99(7), 840–849.

By: R. Parks n, I. Carbone*, J. Murphy & C. Cowger*

MeSH headings : Analysis of Variance; Ascomycota / classification; Ascomycota / genetics; Ascomycota / isolation & purification; Genetic Variation; Genetics, Population; Geography; Haplotypes; Israel; Phylogeny; Plant Diseases / microbiology; Plant Leaves / microbiology; Triticum / microbiology; United Kingdom; United States
TL;DR: The structure of the U.S. wheat powdery mildew population is investigated, finding the population is young, descended recently from Old World populations with isolation and genetic drift, and is currently subdivided into northern and southern subpopulations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Post-Anthesis Moisture Increased Fusarium Head Blight and Deoxynivalenol Levels in North Carolina Winter Wheat

PHYTOPATHOLOGY, 99(4), 320–327.

By: C. Cowger*, J. Patton-Ozkurt*, G. Brown-Guedira* & L. Perugini*

author keywords: Gibberella zeae
MeSH headings : Fusarium / physiology; Host-Pathogen Interactions; North Carolina; Plant Diseases; Rain; Seeds / chemistry; Trichothecenes / analysis; Triticum / chemistry; Triticum / microbiology
TL;DR: This is the first investigation to show that extended post-flowering moisture can have a significant enhancing effect on FHB, FDK, DON, and percent infected kernels of wheat and imply that accurate forecasts of DON in small grains must take account of post-anthesis weather conditions. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Frequency of sexual recombination by Mycosphaerella graminicold in mild and severe epidemics

PHYTOPATHOLOGY, 98(7), 752–759.

By: C. Cowger n, P. Brunner & C. Mundt

author keywords: mark-release-recapture; Septoria tritici; Septoria tritici blotch; Triticum aestivum
MeSH headings : Ascomycota / genetics; Bayes Theorem; DNA Fingerprinting; Plant Diseases / microbiology; Polymorphism, Restriction Fragment Length; Recombination, Genetic / genetics; Triticum / microbiology
TL;DR: The hypothesis that sexual recombination makes a relatively consistent contribution to M. graminicola population structure is supported, despite differences in epidemic severity and ascocarp proportions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Virulence structure of the Eastern US wheat powdery mildew population

PLANT DISEASE, 92(7), 1074–1082.

By: R. Parks n, I. Carbone*, J. Murphy n, D. Marshall n & C. Cowger n

author keywords: Blumeria graminis f. sp tritici; Triticum aestivum
TL;DR: Virulence frequencies were used to infer local effectiveness of Pm genes, estimate virulence complexity, detect significant associations between pairs of pathogen avirulence loci, and assess whether phenotypic differences between pathogen subpopulations increased with geographic distance. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Winter wheat blends (mixtures) produce a yield advantage in north Carolina

AGRONOMY JOURNAL, 100(1), 169–177.

By: C. Cowger n & R. Weisz n

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Artificial inoculation of wheat for selecting resistance to Stagonospora nodorum blotch

PLANT DISEASE, 91(5), 539–545.

By: C. Cowger n & J. Murphy n

author keywords: cereals; principal component analysis
TL;DR: On average, artificial inoculation increased the capacity of environments to separate wheat cultivars by SNB resistance, and biplot analysis indicated that all artificial methods had a higher mean capacity to discriminate among cultivars than did natural inoculum. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Frequency of Phaeosphaeria nodorum, the sexual stage of Stagronospora nodorum, on winter wheat in North Carolina

PHYTOPATHOLOGY, 96(8), 860–866.

By: C. Cowger* & H. Silva-Rojas

author keywords: Leptosphaeria nodorum; pseudothecia; Septoria nodorum
TL;DR: It is concluded that, in North Carolina, sexual reproduction plays a role in initiation of SNB epidemics and the creation of adaptively useful genetic variability, although its relative importance in structuring this population is uncertain. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
3. Good Health and Well-being (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2005 journal article

The Southeastern U.S. fusarium head blight epidemic of 2003

Plant Health Progress, 1.

By: C. Cowger* & A. Sutton n

TL;DR: While this was not a controlled study, the results suggest that pre-flowering weather may have played a less significant role than post- Flowering weather, and was unlikely to have been a good predictor of FHB severity in the southeast in 2003. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2005 journal article

Velocity of spread of wheat stripe rust epidemics

Phytopathology, 95(9), 972–982.

By: C. Cowger, L. Wallace & C. Mundt

Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

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